Manual operating device for adding-machines.



C. G. DEY.

MANUAL OPERATING DEVICE FOR ADDING MACHINES. I

APPLIGATION FILED FEB- 7, 1913.

Patented Mar. 30, 1915.

HE NORRIS PETERS C0,. PHOTO-H1710" WASHINGTON. D. C.

CHARLES o, DEY, or VICTORIA, LOUISIANA.

IVIANUAL OPERATING DEVICE FOR ADDING-MACHINES.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application filed February 7, 1913. Serial No. 746,907.

To all whom it may concern Be it known that I, CHARLES C. DEY, a citizen of the United States, residing at Victoria, in the parish of Natchitoches and State of Louisiana, have invented new and useful Improvements in Manual Operating Devices for Adding-Machines, of which the following is a specification.

The invention relates to manual operating devices for addin machines and the like, and has for an ob ect to provide a device whereby the adding machine can be operated by foot power as well as by hand power.

The invention embodies, more particularly, a device having connection with the usual crank handle of the adding machine, whereby the adding machine will be operated by foot power, the device, however, being arranged so as not to interfere with the operation of the crank handle by hand, if it is desired to operate the machine in this manner.

In the further disclosure of the invention reference is to be had to the accompanying drawings, constituting a part of this specification, in which similar characters of reference denote corresponding parts in all the views, and in which:

Figure 1 is a perspective view, showing my device attached to an adding machine on the stand thereof; Fig. 2 is a perspective view of the clamp for clamping the operating cord to the crank handle of the adding machine; Fig. 3 is a plan view of the foot lever supporting member; and Fig. 4 is a vertical longitudinal sectional view taken through the foot lever on the line 44 in Fig. 3.

Referring more particularly to the views, I disclose a stand 10 carrying a plate 11 on which is supported an adding machine 12, the stand 10 being formed to include supporting legs 13 as shown, and which retain the stand in an upright position.

The adding machine 12 is provided with the usual crank handle 14 for operating the machine and a clamp 15, preferably formed of a single piece of sheet like material or cast, is arranged to encircle the crank handle adjacent the free end thereof, a suitable screw 16 preferably passing through the clamp and the crank handle to rigidly secure the clamp thereto, the said clamp including a plurality of engaging ears 17 provided with registering apertures 18 through which is received a cord 19, the free end of the cord being'preferably knotted in order to retain the cord in connection with the clamp.

A pulley 20 is revolubly carried on the plate 11 and the cord 19 extends downwardly at an angle from the clamp 15 and passes over the pulley 20, as shown.

A base 21, preferably cast from a single piece of material and including a plurality of uprights 22 and a U-shaped strap 23, is rigidly clamped to one of the supporting legs 13 of the stand 10 as shown, and a shaft 24 extends longitudinally to the base 21 and has one end thereof projecting beyond an end of the base, with a foot lever 25 journaled on the said projecting end of the shaft, the lower end of the cord 19 being attached to the free end of the foot lever 25, with a suitable contractile spring 26 also connected to the free end of the foot lever and extending outwardly and secured to the under side of the plate 11.

It will now be seen that by applying the foot to the foot lever 25, and which is preferably covered with a rubber pad 27, the downward movement of the foot lever will result in a downward pull on the cord 19, thus actuating the crank handle 14: of the adding machine, 12, it being readily seen, however, that the crank 15 which secures the cord 19 to the crank handle, is spaced sufiiciently from the free end of the crank handle to permit of operating the crank handle by hand if it is so desired to operate the adding machine. It will be apparent, however, that by providing the foot operating means described herein, the adding machine can be as effectively operated by the foot as by hand, while at the same time both hands of the operator will be free in order to facilitate the proper, accurate and rapid operation of the machine.

It will be understood that I do not limit myself to the particular structure disclosed in the drawings, but that the scope of the invention is defined by the appended claim.

Having thus described my invention, I claim:

In combination with a machine having supporting legs constituting a base therefor, a rectangular clamp rigidly attached to the end of one of the supporting legs and projecting laterally thereto to lie in offset relation to the supporting leg, of a shaft the clamp so that a swinging movement can journaled on the clamp and extending 'horibe imparted to the foot lever. 10 zontally to have one end thereof project In testimony whereof I afiix my signature beyond an end of the clamp, and a foot lever in presence of two Witnesses. mounted to swing on the projecting end of 7 CHARLES C. DEY.

the shaft and lying exteriorly of the clamp -Witnesses: 7 adjacent an end thereof, said foot lever he MACK JENSEN, ing held in spaced relation to the floor by C. 'B. HARRIS.

Copies 01' this patent may be obtained for five cents each, by a ddres s ing the Commissioner of Patents,

Washington, D. 0. 

